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Thermal Acoustic Oscillations: Short Review and Countermeasures

: Putselyk, S.

Volltext ()

Institute of Physics -IOP-, London:
Advances in Cryogenic Engineering : Proceedings of the Cryogenic Engineering Conference (CEC) 2019, 21-25 July 2019, Hartford, Connecticut, USA
Bristol: IOP Publishing, 2020 (IOP conference series. Materials science and engineering 755)
Art. 012080, 10 S.
Cryogenic Engineering Conference (CEC) <2019, Hartford/Con.>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer FHR ()

Thermally driven oscillations in capillaries of helium cryogenic systems could be observed when a local heat source occurs or a continuous cold to warm temperature transition along capillary exists. These oscillations could lead to a significant heat flux as well as for pressure disturbances. Therefore, it is practically important to design cryogenic systems robust against possible disturbances due to Thermal Acoustic Oscillations (TAO). In the present paper, a short review on available theoretical and experimental results related to the TAO is given. Some tips for a design as well as in-situ countermeasures are discussed.